Selected ATcT [1, 2] enthalpy of formation based on version 1.122p of the Thermochemical Network [3]

This version of ATcT results was generated from an expansion of version 1.122o [4] to include an updated enthalpy of formation for Hydrazine. [5].

Species Name Formula Image    ΔfH°(0 K)    ΔfH°(298.15 K) Uncertainty Units Relative
Molecular
Mass		 ATcT ID
Difluoromethyliumyl[CF2]+ (g)[C+](F)F908.18908.60± 0.78kJ/mol50.00696 ±
0.00080		54250-40-7*0

Representative Geometry of [CF2]+ (g)

spin ON           spin OFF
          

Top contributors to the provenance of ΔfH° of [CF2]+ (g)

The 20 contributors listed below account only for 82.8% of the provenance of ΔfH° of [CF2]+ (g).
A total of 32 contributors would be needed to account for 90% of the provenance.

Please note: The list is limited to 20 most important contributors or, if less, a number sufficient to account for 90% of the provenance. The Reference acts as a further link to the relevant references and notes for the measurement. The Measured Quantity is normaly given in the original units; in cases where we have reinterpreted the original measurement, the listed value may differ from that given by the authors. The quoted uncertainty is the a priori uncertainty used as input when constructing the initial Thermochemical Network, and corresponds either to the value proposed by the original authors or to our estimate; if an additional multiplier is given in parentheses immediately after the prior uncertainty, it corresponds to the factor by which the prior uncertainty needed to be multiplied during the ATcT analysis in order to make that particular measurement consistent with the prevailing knowledge contained in the Thermochemical Network.

Contribution
(%)		TN
ID		 Reaction Measured Quantity Reference
38.64651.2 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.42 ± 0.01 eVDyke 1974
6.14651.3 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.445 ± 0.025 eVBuckley 1995
4.94660.5 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.353 ± 0.025 eVRuscic W1RO
4.84661.5 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.312 ± 0.025 eVRuscic W1RO
4.24671.14 CF2 (g) → CF (g) + F (g) ΔrH°(0 K) = 514.41 ± 0.8 kJ/molCsontos 2010
2.44651.11 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.430 ± 0.040 eVRuscic W1RO
2.44651.12 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.458 ± 0.040 eVInnocenti 2008, note unc2
2.14655.1 CF2 (g) → C (g) + F2 (g) ΔrH°(0 K) = 905.29 ± 1.2 kJ/molCsontos 2010
1.84649.6 CF2 (g) → C (g) + 2 F (g) ΔrH°(0 K) = 253.26 ± 0.30 kcal/molKarton 2008, Karton 2011
1.84649.11 CF2 (g) → C (g) + 2 F (g) ΔrH°(0 K) = 253.38 ± 0.3 kcal/molFeller 2008
1.64708.1 CF2CF2 (g) → 2 CF2 (g) ΔrG°(1350 K) = 49.48 ± 2.13 kJ/molCobos 2013, 3rd Law
1.54660.4 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.329 ± 0.045 eVRuscic CBS-n
1.54661.2 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.288 ± 0.045 eVRuscic G4
1.54661.4 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.280 ± 0.045 eVRuscic CBS-n
1.44653.8 [CF2]+ (g) → C (g) + 2 F (g) ΔrH°(0 K) = -9.92 ± 1.50 kcal/molRuscic W1RO
1.34653.4 [CF2]+ (g) → C (g) + 2 F (g) ΔrH°(0 K) = -9.71 ± 1.60 kcal/molRuscic G4
1.14658.9 CF3 (g) → CF2 (g) + F (g) ΔrH°(0 K) = 348.56 ± 1.6 kJ/molCsontos 2010
1.14653.3 [CF2]+ (g) → C (g) + 2 F (g) ΔrH°(0 K) = -10.72 ± 1.72 kcal/molRuscic G3X
1.04651.1 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.362 ± 0.010 (×6.037) eVInnocenti 2008, note unc2
0.84660.1 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.364 ± 0.060 eVRuscic G3X

Top 10 species with enthalpies of formation correlated to the ΔfH° of [CF2]+ (g)

Please note: The correlation coefficients are obtained by renormalizing the off-diagonal elements of the covariance matrix by the corresponding variances.
The correlation coefficient is a number from -1 to 1, with 1 representing perfectly correlated species, -1 representing perfectly anti-correlated species, and 0 representing perfectly uncorrelated species.

Correlation
Coefficent
(%)		Species Name Formula Image    ΔfH°(0 K)    ΔfH°(298.15 K) Uncertainty Units Relative
Molecular
Mass		 ATcT ID
47.2 DifluoromethyleneCF2 (g)[C](F)F-193.91-193.44± 0.38kJ/mol50.00751 ±
0.00080		2154-59-8*0
47.2 DifluoromethyleneCF2 (g, singlet)[C](F)F-193.91-193.44± 0.38kJ/mol50.00751 ±
0.00080		2154-59-8*2
47.1 DifluoromethyleneCF2 (g, triplet)[C](F)F43.2844.00± 0.38kJ/mol50.00751 ±
0.00080		2154-59-8*1
29.9 Difluoromethylene anion[CF2]- (g)[C-](F)F-211.18-210.00± 0.60kJ/mol50.00805 ±
0.00080		66212-40-6*0
16.8 Fluoromethyliumylidene[CF]+ (g)[C+]F1122.901126.12± 0.46kJ/mol31.00855 ±
0.00080		33412-11-2*0
16.4 FluoromethyleneCHF (g)[CH]F148.38148.66± 0.43kJ/mol32.01704 ±
0.00080		13453-52-6*0
16.4 FluoromethyleneCHF (g, singlet)[CH]F148.38148.66± 0.43kJ/mol32.01704 ±
0.00080		13453-52-6*2
16.3 TetrafluoroethyleneCF2CF2 (g)C(=C(F)F)(F)F-671.03-674.43± 0.54kJ/mol100.0150 ±
0.0016		116-14-3*0
15.0 Trifluoromethylium[CF3]+ (g)[C+](F)(F)F409.49406.28± 0.47kJ/mol69.00536 ±
0.00080		18851-76-8*0
11.8 BromotrifluoromethaneCF3Br (g)C(F)(F)(F)Br-638.92-651.04± 0.45kJ/mol148.9099 ±
0.0013		75-63-8*0

Most Influential reactions involving [CF2]+ (g)

Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.

Influence
Coefficient		 TN
ID		 Reaction Measured Quantity Reference
0.5064651.2 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.42 ± 0.01 eVDyke 1974
0.0964661.5 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.312 ± 0.025 eVRuscic W1RO
0.0944660.5 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.353 ± 0.025 eVRuscic W1RO
0.0814651.3 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.445 ± 0.025 eVBuckley 1995
0.0314651.11 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.430 ± 0.040 eVRuscic W1RO
0.0314651.12 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.458 ± 0.040 eVInnocenti 2008, note unc2
0.0294661.2 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.288 ± 0.045 eVRuscic G4
0.0294661.4 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.280 ± 0.045 eVRuscic CBS-n
0.0294660.4 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.329 ± 0.045 eVRuscic CBS-n
0.0164661.1 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.306 ± 0.060 eVRuscic G3X
0.0164660.1 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.364 ± 0.060 eVRuscic G3X
0.0154653.8 [CF2]+ (g) → C (g) + 2 F (g) ΔrH°(0 K) = -9.92 ± 1.50 kcal/molRuscic W1RO
0.0144661.3 [CF2]+ (g) + CF (g) → [CF]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.356 ± 0.065 eVRuscic CBS-n
0.0144660.3 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.356 ± 0.065 eVRuscic CBS-n
0.0134651.1 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.362 ± 0.010 (×6.037) eVInnocenti 2008, note unc2
0.0134653.4 [CF2]+ (g) → C (g) + 2 F (g) ΔrH°(0 K) = -9.71 ± 1.60 kcal/molRuscic G4
0.0124660.2 [CF2]+ (g) + CF3 (g) → [CF3]+ (g) + CF2 (g, singlet) ΔrH°(0 K) = -2.291 ± 0.045 (×1.542) eVRuscic G4
0.0114653.3 [CF2]+ (g) → C (g) + 2 F (g) ΔrH°(0 K) = -10.72 ± 1.72 kcal/molRuscic G3X
0.0094651.7 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.413 ± 0.073 eVRuscic G4
0.0094651.10 CF2 (g) → [CF2]+ (g) ΔrH°(0 K) = 11.401 ± 0.075 eVRuscic CBS-n
References
1   B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner,
Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited.
J. Phys. Chem. A 108, 9979-9997 (2004) [DOI: 10.1021/jp047912y]
2   B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner,
Active Thermochemical Tables: Thermochemistry for the 21st Century.
J. Phys. Conf. Ser. 16, 561-570 (2005) [DOI: 10.1088/1742-6596/16/1/078]
3   B. Ruscic and D. H. Bross,
Active Thermochemical Tables (ATcT) values based on ver. 1.122p of the Thermochemical Network (2020); available at ATcT.anl.gov
4   P. B. Changala, T. L. Nguyen, J. H. Baraban, G. B. Ellison, J. F. Stanton, D. H. Bross, and B. Ruscic,
Active Thermochemical Tables: The Adiabatic Ionization Energy of Hydrogen Peroxide.
J. Phys. Chem. A 121, 8799-8806 (2017) [DOI: 10.1021/acs.jpca.7b06221] (highlighted on the journal cover)
5   D. Feller, D. H. Bross, and B. Ruscic,
Enthalpy of Formation of N2H4 (Hydrazine) Revisited.
J. Phys. Chem. A 121, 6187-6198 (2017) [DOI: 10.1021/acs.jpca.7b06017]
6   B. Ruscic,
Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables.
Int. J. Quantum Chem. 114, 1097-1101 (2014) [DOI: 10.1002/qua.24605]
Formula
The aggregate state is given in parentheses following the formula, such as: g - gas-phase, cr - crystal, l - liquid, etc.
Uncertainties
The listed uncertainties correspond to estimated 95% confidence limits, as customary in thermochemistry (see, for example, Ruscic [6]).
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.0005 kJ/mol.
Website Functionality Credits
The reorganization of the website was developed and implemented by David H. Bross (ANL).
The find function is based on the complete Species Dictionary entries for the appropriate version of the ATcT TN.
The molecule images are rendered by Indigo-depict.
The XYZ renderings are based on Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.
Acknowledgement
This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences under Contract No. DE-AC02-06CH11357.